Weather on September 1
Arvada, CO
55 Years of Data
Avg High
83°F
Avg Low
54°F
Warmest
1985
80°F avg
Coldest
2006
54°F avg
About This Date
September 1st in Arvada, CO typically brings warm fall weather, with average highs around 83°F and lows near 54°F — a 29°F daily swing. Over 55 years of records, the warmest September 1st was in 1985 (80°F average), while the coldest was 2006 (54°F) — a 26°F range across recorded history. Rain or other precipitation has occurred on about 18% of September 1st dates historically, with the wettest September 1st recording 3.51" of rain. The last decade has been 5.2°F warmer on this date compared to 20-30 years ago.
The last decade has been 5.2°F warmer on this date compared to 20-30 years ago.
Planning for September 1st in Arvada, CO? Stay hydrated and seek shade during peak afternoon hours.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 80° | 53° | 67° | — | — |
| 2024 | 87° | 59° | 73° | — | — |
| 2023 | 94° | 61° | 77° | — | — |
| 2022 | 89° | 61° | 75° | — | — |
| 2021 | 94° | 55° | 74° | — | — |
| 2020 | 71° | 50° | 61° | 0.18" | — |
| 2019 | 90° | 56° | 73° | — | — |
| 2018 | 88° | 58° | 73° | — | — |
| 2017 | 80° | 54° | 67° | — | — |
| 2016 | 78° | 50° | 64° | — | — |
| 2015 | 86° | 55° | 71° | 0.25" | — |
| 2014 | 84° | 51° | 68° | — | — |
| 2013 | 88° | 62° | 75° | — | — |
| 2012 | 92° | 55° | 73° | — | — |
| 2011 | 84° | 58° | 71° | — | — |
| 2010 | 77° | 46° | 62° | — | — |
| 2009 | 77° | 51° | 64° | — | — |
| 2008 | 75° | 44° | 60° | — | — |
| 2007 | 75° | 52° | 63° | — | — |
| 2006coldest | 70° | 38° | 54° | — | — |
| 2005 | 73° | 46° | 60° | — | — |
| 2004 | 72° | 46° | 59° | — | — |
| 2003 | 70° | 45° | 57° | — | — |
| 2002 | 78° | 58° | 68° | — | — |
| 2001 | 80° | 60° | 70° | — | — |
| 2000 | 69° | 56° | 62° | 0.56" | — |
| 1999 | 90° | 58° | 74° | 0.79" | — |
| 1998 | 81° | 57° | 69° | 0.38" | — |
| 1997 | 88° | 49° | 68° | 3.51" | — |
| 1996 | 86° | 45° | 65° | — | — |
| 1995 | 94° | 51° | 72° | — | — |
| 1994 | 74° | 48° | 61° | 1.47" | — |
| 1993 | 74° | 48° | 61° | — | — |
| 1992 | 75° | 58° | 66° | 0.13" | — |
| 1991 | 86° | 55° | 71° | — | — |
| 1990 | 92° | 59° | 75° | 0.23" | — |
| 1989 | 91° | 59° | 75° | — | — |
| 1988 | 89° | 57° | 73° | — | — |
| 1987 | 79° | 46° | 62° | — | — |
| 1986 | 77° | 48° | 63° | — | — |
| 1985warmest | 96° | 64° | 80° | — | — |
| 1984 | 89° | 62° | 76° | — | — |
| 1983 | 87° | 67° | 77° | — | — |
| 1982 | 90° | 59° | 74° | — | — |
| 1981 | 69° | 46° | 58° | — | — |
| 1980 | 77° | 47° | 62° | — | — |
| 1979 | 82° | 55° | 69° | — | — |
| 1978 | 90° | 58° | 74° | — | — |
| 1977 | 91° | 57° | 74° | — | — |
| 1976 | 78° | 51° | 65° | — | — |
| 1975 | 86° | 57° | 72° | — | — |
| 1974 | 82° | 42° | 62° | — | — |
| 1973 | 84° | 61° | 72° | — | — |
| 1972 | 71° | 46° | 59° | 1.45" | — |
| 1971 | 91° | 59° | 75° | — | — |
55 years of data from WATERTON NORTH COLORADO